feat: 集成 Battle tab 到 BuddyPanel，重命名 data/ 为 dex/ 规避 gitignore

- BuddyPanel 新增 Battle tab，BattleFlow 加 isActive 控制
- BattleFlow configSelect 阶段支持 ↑↓ 选择物种
- packages/pokemon/src/data/ → dex/，解决根 .gitignore 匹配问题
- 全量 Tab→2空格 缩进转换

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/pokemon/src/ui/shared.ts

@@ -1,14 +1,14 @@
 import type { Color } from '@anthropic/ink'
 
 const STAT_COLORS: Record<string, Color> = {
-	hp: 'ansi:green',
-	attack: 'ansi:red',
-	defense: 'ansi:yellow',
-	spAtk: 'ansi:blue',
-	spDef: 'ansi:magenta',
-	speed: 'ansi:cyan',
+  hp: 'ansi:green',
+  attack: 'ansi:red',
+  defense: 'ansi:yellow',
+  spAtk: 'ansi:blue',
+  spDef: 'ansi:magenta',
+  speed: 'ansi:cyan',
 }
 
 export function getStatColor(stat: string): Color {
-	return STAT_COLORS[stat] ?? 'ansi:white'
+  return STAT_COLORS[stat] ?? 'ansi:white'
 }